LM5166 datasheet(11/53 Pages) TI1

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Temperature (qC)

-50

-25

100

125

150

D024

Temperature (qC)

-50

-25

100

125

150

100

125

150

D025

LM5166

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SNVSA67A – DECEMBER 2016 – REVISED DECEMBER 2016

Product Folder Links: LM5166

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Typical Characteristics (continued)

Unless otherwise specified, VIN = 12 V, VOUT = 5 V. Please refer to Typical Applications for circuit designs.

Figure 25. Zero-Cross Current Threshold vs Temperature

Figure 26. PGOOD and HYS Pull-down RDS(on) vs

Temperature

Time Scale: 20 ms/Div

CH1: VSW, 5 V/Div

CH2: VOUT, 50 mV/Div

CH4: IL, 200 mA/Div

Figure 27. No Load Switching Waveforms, COT, Type 2

Time Scale: 10 µs/Div

CH1: VSW, 5 V/Div

CH2: VOUT, 50 mV/Div

CH4: IL, 200 mA/Div

Figure 28. Full Load Switching Waveforms, COT, Type 2

Time Scale: 2 ms/Div

CH1: VIN, 2 V/Div

CH2: VOUT, 1 V/Div

CH4: IL, 200 mA/Div

Figure 29. Full Load Startup, COT, Type 2

Time Scale: 100 µs/Div

CH1: VSW, 4 V/Div

CH4: IL, 200 mA/Div

Figure 30. Short Circuit, COT, Type 2

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